Oiler



F. L. CANTRALL.

OILER.

APPLICATION FILED JUNE8, 191a.

Patented Dec. 30, 1919.

TZIM BY My ATTORNEYS v UNITED STATES PATENT OI JBIOE FORREST L.CANTRALL, OF ALTUBAS, CALIFORNIA.

OILER.

Application filed June 8, 1918.

To all whom it may concern Be it known that I, FORREST L. CANTRALL, acitizen of. the United States, and a resident. of Alturas,'county ofModoc, and State of California, have invented a new and useful Oiler, ofwhich the following is a specification.

My invention relates to oil cans, and one of the objects of theinvention'is to provide a self filling oil can.

Another object of the invention is to provide an oil can which will notleak.

The invention possesses many other features of advantage, some'of which,with the foregoing, will be set forth in the following description ofthe preferred form of my invention. which is illustrated in the drawingsaccompanying and forming part of the specification. It is to beunderstood that I do not limit myself to the showing made by. the saiddrawings and description, as I may adopt variations of the preferredform within the scope of my invention as set forth in the claims.

Referring to the drawings:

Figure 1 is a vertical section through the center of the oiler.

Fig. 2 is a modified form of the oiler of my invention.

Broadly, my invention comprises a closed casing formed of telescopicsections. Means are provided for extending said casing so that thesuction thus produced will draw oil into the casing, and means are alsoprovided for sealing the outlet passage when the casings are extended sothat all leakage isprevented even though the oiler lies upon its side.

The oiler of my invention consists of a lower section 2 adapted to holda quantity of oil. Arranged in the section 2 is a piston 3-, fixed uponthe lower end of a tube 4. The end of the tube is reduced in diameter toform a shoulder 6 and a metallic washer 7 is disposed on each side ofthe piston. Leather washers 8 are disposed between the washers 7 and thepiston 3, and washers and piston are heldtightly'on the tube byupsetting or expanding the lower edge 11 of the tube. The outer edge ofeach leather washer is formed into a flange 12 which forms a tightworking fit with the sides of the casing section 2. The function of themetal washers is to hold the leather washers in position, and theleather washers prevent leakage past the piston.

Specification of Letters Patent.

Patented Dec. 30, 1919.

Serial No. 238,837.

The upper end of the tube 4 is threaded and adapted to receive thesocket 14; of the spout 16. A valve seat 17 is rigidly fixed in thelower end of the tube and a valve 18 formed by the enlarged end of therod 19 fixed to the bottom of the section 2 is adapted to close thepassage into the tube, when the piston has risen sufliciently to .seatthe valve. Preferably the top of the valve 18 is provided with a notchto fit a screw driver, and the lower end of the rod is threaded toengage a boss 20 formed in the bottom 21 of section 2. A compressionspring 22 in the tube 4 lying between the socket let and the top of thefixed valve 18 tends to keep the piston 3 in its highest position in thesection 2. In this position the valve 18 engages the seat 17 and closesthe outlet passage therethrough, and also limits the upward movement ofthe piston 3.

Rigidly secured to the upper partof the tube and extending downwardlyabout the section 2 is an upper casing section 23 adapted to telescopeupon the lower section 2 when the piston 3 moves downwardly in thelatter section. The function of the section 23 is to incase and protectthe tube 4; and piston 3 and to form with the lower section a closedcasing convenient to handle and operate. c

From the above, it will be clear that the oiler may be held in one handand by pressing the upper and lower sections together,

the valve is opened and the contents of the oil chamber 24: dischargedthrough the tube l and spout. Releasing the hold upon the upper section,the spring 22 raises the piston and upper section and closes the valveso that the contents of the oil chamber cannot discharge no matter whatthe position of the oiler is. Obviously, if the open end of the spout isinserted into a body of oil, such recovery of the piston will fill theoil chamber.

Preferably an intermediate telescopic casing section 26 is insertedbetween the upper and lower sections so that the full capacity of thelower section may be utilized, and to provide a larger engaging surfaceso that jamming of the sections upon each other is avoided.

downwardlyto form a cup 27, having an aperture in the bottom thereofthrough which the tube 4 passes. The proportions of the parts are suchthat with the piston in the lowest position in the lower section, thebottom edges 28 and 29 of the two sections 23 and 26 respectively lie inthe plane of the bottom 21 of the lower section, the bottom 31 of thecup lying above the piston about midway between the extreme lower andupper positions of the latter. As the piston and upper section 23 rise,the piston engages the cup and carries the section 26 upwardly for theremaining half of its stroke, positioning the parts finally asshown inFig. 1, the intermediate section engaging about one half of each of theother two sections. In order to prevent an upward displacement of theintermediate section, a coil spring 32 is disposed about the outside ofthe tube 4 and between the bottom 31 of the cup and the upper wall 33 ofthe section 23. The intermediate section therefore cannot be displaceddownwardly because of the engagement of the cup with the piston, and thespring 32 resists upward displacement. The result is a smooth telescopicaction between the casing sections, which tend to extend into theposition shown in Fig. 1.

In Fig. 2, I have shown a structure in which the upper casing is also anoil reservoir, thus increasing the capacity of the oiler with noincrease in size.

The piston 3 is secured upon a tube 36, the top of which is threadedtightly into the bell shaped projection 37 formed upon the.

top of the upper casing section 23. The tube 4 in which a valve seat 17is arran ed as already explained is rigidly fixed to t 1e bell 37 andlies within the tube 36. At its lower end it is fixed to the tube 36 andto the piston 3 by the spokes 38 leaving a passage between the two tubesopening on the under side of the piston. The outer tube 36 is providedwith apertures 39, thus placing the chamber 24 in the lower section incommunication with the chamber 40 in the upper section.

The top wall 41 of the intermediate section 26 is formed as a piston towork in the upper section and a tight working fit between this pistonand the walls of the section and the tube 36 is secured by an annularflanged leather washer 42 held in place by an annular metallic washer 43suitably secured by screws 44.

An annular stop 46 fixed on the tube 36 enables the upper section 23 andthe piston 3 to pick up and move the intermediate section when thesections are extending and the position of the stoi is such that itengages the iston 41 a out midway of the stroke of t e piston 3. Thespring 47 performs the same function as the spring 32 in Fig. 1construction, 71. a, it prevents the upward displacement of theintermediate secwee tion. The upper end of the spring 47 is attached toanother of said sections, a spout for said oiler, and a valve controlledpassage through said piston into said spout.

2. An oiler comprising telescopic sections, a piston arranged in one ofsaid sections, means for securing said piston to another of saidsections, said means having a passage therethrough, and a valve operatedby the movement of said piston and attached section for controlling saidpassage.

3. An oiler comprising a casing section, a piston arranged in saidsection, a tube terminating in a spout connected to said piston. a valveseat disposed in said tube, and a valve adapted to engage said seattoclose the passage through said tube aflixed to said casing section.

4. An oiler comprising a lower casing section, a piston arranged in saidsection, a tube terminating in a spout connected to said piston, a valveseat disposed in said tube, a valve adapted to engage said seat to closethe passage through said tube aflixed to said lower section, and anupper casing section fixed on said tube and telescoped upon said lowersection.

5. An oiler comprising a lower casing section, a piston arranged in saidsection, a tube terminating in a spout connected to said piston, a valveseat disposed in said tube, a valve adapted to engage said seat to closethe passage through said tube aflixed to said lower section, an uppercasing sec tion fixed on said tube and telescoped upon said lowersection, and a spring interposed between said lower and upper casingsections.

6. An oiler comprisin a lower casing section, a piston arranged in saidsection, a tube terminating in a spout connected to said piston, a valveseat disposed in said tube, a valve adapted to engage said seat to closethe passage through said tube afiixed said piston, a valve seat disposedin said tube, a valve adapted to engage said seat to close the passagethrough said tube affixed to said lower section, an upper casing sectionfixed on said tube and telescoped upon said lower section, anintermediate casing section telescoped between said lower and uppercasing sections, and means for resisting the telescoping of saidsections upon each other.

8. An oiler comprising a lower casing section, a piston arranged in saidsection, a tube terminating in a spout connected to I said piston, avalve seat disposed in said tube, a valve adapted to engage said seat toclose the passage through saidtube aflixed to said lower section, anupper casing sec tion fixed on said tube and telescoped upon said lowersection, an intermediate casing section telescoped between said lowerand upper casing sections, a spring interposed between said lower andupper sections, and a spring interposed between said upper andintermediate sections.

9. An oiler comprisin a lower casing section, a piston arrange in saidsection, a tube terminating ina spout and connected to said piston, anannular valve seat disposed in said tube, a rod aflixed to said lowersection extending through said valve seat into said tube, a valve onsaid rod adapted to engage said seat to close the passage therethrough,an upper casing section fixed on said tube and telescoped upon saidlower section, and a spring interposed between said upper and lowersections.

10. An oiler comprising a lower casing section, a piston arranged insaid section, a tube terminating in a spout and connected to saidpiston, an annular valve seat disposed in said tube, an upper casingsection fixed on said tube and telescoped upon said lower section, a rodaflixed to said lower section extending through said valve seat intosaid tube, a valve onsaid rod adapted to engage said seat to close thepassage. therethrough and to limit the extension of said upper sectionupon said lower section, and a spring interposed between said upper andlower sections and tending to cause their extension one from the other.

11. An oiler comprising a lower casing section, apiston arranged in saidsection, a tube terminating in a spout connected to said piston, a valveseat disposed in said tube, a valve adapted to engage said seat to closethe passagethrough said tube and to limit the upward movement of saidpiston in said lower section, an upper casing section fixed on said tubeand telescoped upon said lower section, and a compression springinterposed between said lower and upper section.

12. An oiler comprising a lower casing section, a piston arranged insaid section, a tube terminating in a spout connected to said piston, avalve seat disposed in said tube, a valve adapted to engage said seat toclose the passage through said tube and to limit the upward movement ofsaid piston in said lower section, an upper casing section fixed on saidtube and telescoped upon said lower section, an intermediate casingsection interposed between said lower and upper sections, means tendinto extend said upper section from the-1nterme-. diate and from the lowersections, and means for limiting the extension of said upper sectionfrom said intermediate section. r i

13. An oiler comprising a' casing formed of telescopic sections, apiston in one of said sections connected to and movable with another ofsaid sections, said piston 'forming with the section in which it lies anoil chamber, means providing an inlet and out- .let passage into saidchamber, a valve control ing said passage operated by the relativemovement between two of sald sections, means for extending saidtelescopic sections and. means for linntin said extension.

In testimony whereo I have hereunto set my hand at Oakland, California,this 25th day of May, 1918.

FORREST L. CANTRALL.

i In presence of J. MCCOSH SMITH.

